package java56_5;

public class Circle {
	public int radius;
	public static double PI = 3.14;
	static {// only 执行一次
		System.out.println("园这个类被加载了");
	}

	public double getArea() {
		return PI * radius * radius;
	}

	public static void printYuanzhoulv() {
		System.out.println("圆周率是" + PI);
	}
}
